Question

Concept Check: write down the dissociation equation and hydroiysis in water and predict their acidic, basic, or neutral properties with theirestimated K,or K, constants for the following salts. Estimated Dissociation Equation HydroiysisAcdic/Basic/Neutrali KCI KNO3 NaC NaNO3 NaC,H,02

Answer 1

a) KCl

Dissociation equation :

KCl ------ K+ + Cl-

Hydrolysis equation

KCl + H2O ----- KOH + HCl

Estimated : Neutral, since salt of strong acid (HCl) and strong base (KOH)

b) KNO3

Dissociation equation :

KNO3 ------ K+ + NO3-

Hydrolysis equation

KNO3 + H2O ----- KOH + HNO3

Estimated : Neutral, since salt of strong acid (HNO3) and strong base (KOH)

c) NaCl

Dissociation equation :

NaCl ------ Na+ + Cl-

Hydrolysis equation

NaCl + H2O ----- NaOH + HCl

Estimated : Neutral, since salt of strong acid (HCl) and strong base (NaOH)

d) NaNO3

Dissociation equation :

NaNO3 ------ Na+ + NO3-

Hydrolysis equation

NaNO3 + H2O ----- NaOH + HNO3

Estimated : Neutral, since salt of strong acid (HNO3) and strong base (NaOH)

e) NaC2H3O2

Dissociation equation :

CH3COONa ------ Na+ + CH3COO-

Hydrolysis equation

CH3COONa + H2O ----- NaOH + CH3COOH

Estimated : Basic, since salt of weak acid (CH3COOH) and strong base (NaOH)